Education technology startup Knewton, which makes tools that adapt to each student’s learning style, has raised $51 million led by Atomico, along with GSV Capital and existing investors Accel Partners, Bessemer Venture Partners, First Round Capital, FirstMark Capital and Founders Fund. This doubles the New York-based company’s funding and is meant to help it expand around the globe with schools and academic publishers.

SeatGeek, a ticket search service that gets about 3.5 million visits per month and expects $12 million in revenue this year, has bought its competitor FanSnap in order to take it off the market. FanSnap, which had raised $16 million in funding (more than twice as much as SeatGeek), had previously been bought in 2011 by Wize Commerce. SeatGeek said it raised $2.2 million to finance the acquisition, but didn’t offer other terms of the deal.

AllThingsD by Writer

AllThingsD.com is a Web site devoted to news, analysis and opinion on technology, the Internet and media. But it is different from other sites in this space. It is a fusion of different media styles, different topics, different formats and different sources. Read more »